CN110518135A - Quantum dot OLED display panel - Google Patents
Quantum dot OLED display panel Download PDFInfo
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- CN110518135A CN110518135A CN201910816776.3A CN201910816776A CN110518135A CN 110518135 A CN110518135 A CN 110518135A CN 201910816776 A CN201910816776 A CN 201910816776A CN 110518135 A CN110518135 A CN 110518135A
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K50/00—Organic light-emitting devices
- H10K50/10—OLEDs or polymer light-emitting diodes [PLED]
- H10K50/11—OLEDs or polymer light-emitting diodes [PLED] characterised by the electroluminescent [EL] layers
- H10K50/115—OLEDs or polymer light-emitting diodes [PLED] characterised by the electroluminescent [EL] layers comprising active inorganic nanostructures, e.g. luminescent quantum dots
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K50/00—Organic light-emitting devices
- H10K50/80—Constructional details
- H10K50/85—Arrangements for extracting light from the devices
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K50/00—Organic light-emitting devices
- H10K50/80—Constructional details
- H10K50/86—Arrangements for improving contrast, e.g. preventing reflection of ambient light
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
- H10K59/30—Devices specially adapted for multicolour light emission
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
- H10K59/30—Devices specially adapted for multicolour light emission
- H10K59/38—Devices specially adapted for multicolour light emission comprising colour filters or colour changing media [CCM]
Abstract
The invention discloses a kind of quantum dot OLED display panels, OLED light emitting source by that will correspond to the red green dice color blocking of colored filter uses red blue green indigo plant color mixing light source, blue light source in color mixing light source can excite the red green quanta point material of the photic conversion film of quantum dot, the light inspired is appeared by colored filter, red green light source can be directed through colored filter in color mixing light source, improve panel luminance；And made in a manner of permutation or full line by the red green dice color blocking in colored filter side, the red blue green indigo plant color mixing light source respective production in OLED array side effectively improves panel resolution.
Description
Technical field
The present invention relates to field of display technology more particularly to a kind of quantum dots that display panel brightness and service life can be improved
OLED display panel.
Background technique
With flourishing for display technology, high colour gamut has become an important development direction.High colour gamut means to show
Show that picture has more colourful color, there is stronger color to show ability.QD (Quantum Dot, quantum dot) is aobvious
The technology of showing belong to innovation semiconductor nanocrystal technology, can accurately convey light, efficiently promoted display screen color gamut value and
Visual angle makes color more pure bright-coloured, color representation is made to have more tension.Colour gamut model can not only be generated using the display of the technology
Enclose wider array of dynamic color, moreover it is possible to show true colour table in image quality, surmount traditional backlight technology.
The fast development of OLED (Organic Light Emitting Diode, Organic Light Emitting Diode) display technology,
Curved surface and Flexible Displays touch-control product is pushed to quickly enter market, it is also to make rapid progress that related-art technology, which updates,.OLED refers to
Using organic semiconducting materials and luminescent material under electric field driven, pass through two poles of carrier injection and composite guide photoluminescence
Pipe.
QD-OLED display panel combines OLED electroluminescent technology and quantum dot QD photoluminescent techniques, including hair
Penetrate OLED array, the photic conversion film of quantum dot and the colored filter (Color Filter, abbreviation CF) of blue light.QD-
OLED display panel excites red green quantum dot in the photic conversion film of quantum dot, red quantum dot using Nan dian Yao as light source
After receiving blue light, feux rouges can be inspired and appeared by colored filter, green quantum dot is after receiving blue light, meeting
It inspires green light to appear by colored filter, blue light can be directed through colored filter, to form full-color display.QD-
OLED display panel has wide colour gamut, and the excellent performance such as wide viewing angle is considered as the potential technology of large scale OLED.
Since red/green pixel needs Nan dian Yao by exciting quantum dot switching emission to go out red/green, remaining blue light
It is filtered out by colored filter, therefore, red/green brightness is limited to quantum dot light degree of switching.It is currently limited by blue light effect
Rate is lower, will affect display panel overall brightness and reduces the display panel service life.
Summary of the invention
It is an object of the present invention in view of the problems of the existing technology, a kind of quantum dot OLED display panel is provided, it can
To effectively improve the brightness of display panel, and promote the service life of display panel.
To achieve the above object, the present invention provides a kind of quantum dot OLED display panels, comprising: a colored filter,
The colored filter includes a color blocking layer, and the color blocking layer includes dividing the color blocking array for having multiple color blocking units, each
The color blocking unit includes at least a red sub- color blocking and a sub- color blocking of green, the sub- color blocking of red and the sub- color of green
It hinders laterally adjacent or longitudinally adjacent；The photic conversion film of one quantum dot, the photic conversion film of quantum dot is in the correspondence red son
Red quantum dot material is prepared at color blocking, and green quanta point material is prepared at the correspondence sub- color blocking of green；An and OLED
The OLED light emitting source of array substrate, the OLED array transmitting includes a blue light source and at least one color mixing light source,
The color mixing light source is arranged at the sub- color blocking of the correspondence red or the sub- color blocking of green, and the color mixing light source is by the blue light
Light source and a light emitting source composition corresponding with the sub- color blocking of the red or the sub- color blocking color of the green.
The OLED light emitting source for corresponding to the sub- color blocking of red of colored filter is adopted the present invention has the advantages that the present invention passes through
Turquoise color mixing light source is used with red blue color mixing light source and/or by the OLED light emitting source of the sub- color blocking of green of corresponding colored filter,
Blue light source in color mixing light source can excite the red green quanta point material of the photic conversion film of quantum dot, and the light inspired passes through
Colored filter appears, and red green light source can be directed through colored filter in color mixing light source, improves quantum dot OLED and shows
The brightness of panel, and effectively increase display panel efficiency, extend the display panel service life.The red blue colour mixture in OLED array side
Light source/turquoise color mixing light source is made in a manner of permutation or full line, and the red sub- sub- color blocking of color blocking/green in colored filter side is also with right
The permutation or full line mode answered make, and effectively improve panel resolution, and in panel is manufactured, without accurate gold
Belong to light shield, reduces panel production difficulty, while reducing production cost.
Detailed description of the invention
To describe the technical solutions in the embodiments of the present invention more clearly, make required in being described below to embodiment
Attached drawing is briefly described, it should be apparent that, drawings in the following description are only some embodiments of the invention, for
For those skilled in the art, without creative efforts, it can also be obtained according to these attached drawings other attached
Figure.
Fig. 1, the film layer structure schematic diagram of the first embodiment of quantum dot OLED display panel of the present invention；
Fig. 2, the corresponding CF frequency spectrum of red sub-pixel, QDPL spectrum and colour mixture light in quantum dot OLED display panel of the present invention
The schematic diagram of the spectrum in source；
Fig. 3, the film layer structure schematic diagram of the second embodiment of quantum dot OLED display panel of the present invention；
Fig. 4, the film layer structure schematic diagram of the 3rd embodiment of quantum dot OLED display panel of the present invention；
Fig. 5 A, schematic diagram shown in quantum dot OLED display panel sub-pixel arrangement first embodiment of the present invention；
Fig. 5 B, schematic diagram shown in quantum dot OLED display panel sub-pixel arrangement second embodiment of the present invention.
Specific embodiment
Embodiments of the present invention are described below in detail, the example of the embodiment is shown in the accompanying drawings, wherein from beginning
Same or similar element or element with the same or similar functions are indicated to same or similar label eventually.Below by ginseng
The embodiment for examining attached drawing description is exemplary, and for explaining only the invention, and is not considered as limiting the invention.This
Outside, present invention repeat reference numerals and/or reference letter in different examples, this repetition are for simplified and clear mesh
, the relationship between discussed various embodiments and/or setting itself is not indicated.
Quantum dot OLED display panel of the present invention, including a colored filter, the colored filter include a color blocking layer,
The color blocking layer includes dividing the color blocking array for having multiple color blocking units, and each color blocking unit includes at least a red son
Color blocking and a sub- color blocking of green, the sub- color blocking of red and the sub- color blocking of green are laterally adjacent or longitudinally adjacent；One quantum
The photic conversion film of point, the photic conversion film of quantum dot prepare red quantum dot material at the correspondence sub- color blocking of red, In
Green quanta point material is prepared at the corresponding sub- color blocking of green；And an OLED array, the OLED array hair
The OLED light emitting source penetrated includes a blue light source and at least one color mixing light source, and the color mixing light source setting is described red in correspondence
At dice color blocking or the sub- color blocking of green, the color mixing light source by the blue light source and one with the sub- color blocking of the red or institute
State the corresponding light emitting source composition of the sub- color blocking color of green.
In quantum dot OLED display panel of the present invention, the sub- color blocking of red of corresponding colored filter or the sub- color blocking of green
OLED light emitting source, can be all made of color mixing light source, or in which one of use color mixing light source.The sub- color of red of corresponding colored filter
The red blue color mixing light source (i.e. purple light source) of resistance, passes through the red quantum dot material and colored filter of the photic conversion film of quantum dot
Red sub- color blocking when, on the one hand the blue light source in red blue color mixing light source can excite red quantum dot material to issue feux rouges, swash
The feux rouges of sending is appeared by red sub- color blocking, and the red-light source in another party is flushing blue color mixing light source can be directed through red
Sub- color blocking；The turquoise color mixing light source (i.e. cyan light source) of the sub- color blocking of green of corresponding colored filter, passes through photic turn of quantum dot
Change film green quanta point material and colored filter green sub- color blocking when, the on the one hand blue light source in turquoise color mixing light source
Green quanta point material can be excited to issue green light, the green light inspired is appeared by the sub- color blocking of green, on the other hand turquoise colour mixture
Green-light source in light source can be directed through red sub- color blocking；So as to improve the brightness of quantum dot OLED display panel,
And it effectively improves display panel efficiency, extend the display panel service life.The OLED array side, red indigo plant color mixing light source/turquoise
Color mixing light source can be made in a manner of permutation or full line；The colored filter side, the red sub- sub- color blocking of color blocking/green is also with right
The permutation or full line mode answered make.Panel resolution can be promoted in this way, and in panel is manufactured, is not necessarily to
Using precision metallic light shield, panel production difficulty is reduced, while reducing production cost.
Preferably, and the quantum dot OLED display panel driving when, using SPR (sub pixel rendering,
Sub-pixel rendering) algorithm acquisition resolution.By using SPR algorithm, display panel can be made to obtain using a small number of sub-pixels
Higher resolution, while the light transmittance of display panel is significantly improved, reduce power consumption.
In quantum dot OLED display panel of the present invention, the color blocking layer can also include the sub- color blocking of blue or white space,
When the sub- color blocking of red and the sub- color blocking of green it is laterally adjacent when, the sub- color blocking of blue (or white space) with it is described red
Dice color blocking and the sub- color blocking of green are longitudinally adjacent, when the sub- color blocking of red and the sub- color blocking of green are longitudinally adjacent
When, the sub- color blocking of blue (or white space) and the sub- color blocking of the red and the sub- color blocking of green are laterally adjacent；It is described
The photic conversion film of quantum dot prepares blue quanta point material or setting light at the correspondence sub- color blocking of blue (or white space)
Scattering particles is left a blank, and the blue light source corresponds to the sub- color blocking of blue (or white space) setting.Corresponding colored filter
The sub- color blocking (or white space) of blue at blue light source, the sub- color blocking (or white space) of blue can be directed through, can also
Blue light is issued with excitated blue quanta point material to appear by the sub- color blocking (or white space) of blue, can also scatter grain by light
Son penetrates the sub- color blocking (or white space) of blue after improving light diffusion function, further increases the bright of quantum dot OLED display panel
Degree.
Preferably, in the quantum dot OLED display panel, each sub- color blocking and corresponding light emitting source are jointly fixed
Justice goes out a sub-pixel, the corresponding colored filter frequency spectrum (abbreviation CF frequency spectrum) of same sub-pixel, quantum dot photoluminescence spectra
(Quantum Dot Photoluminescence Spectroscopy, abbreviation QDPL spectrum) and OLED light emitting source spectrum are basic
It is overlapped, to improve translucency, improves display panel brightness.For example, in the quantum dot OLED display panel, each red
Sub- color blocking defines a red sub-pixel, the corresponding CF frequency of red sub-pixel with corresponding red blue color mixing light source (or blue light source)
Spectrum (frequency spectrum of red sub- color blocking), QDPL spectrum (red quantum dot material spectrum) and OLED light emitting source spectrum (excitation amount of red
The blue spectrum of son point material or the spectrum of red blue color mixing light source) guarantee maximum coincidence as far as possible；Each sub- color blocking of green with it is right
The turquoise color mixing light source (or blue light source) answered defines a green sub-pixels, the corresponding CF frequency spectrum of green sub-pixels (green
The frequency spectrum of color blocking), QDPL spectrum (green quanta point material spectrum) and OLED light emitting source spectrum (excite green quanta point material
The spectrum of blue spectrum or turquoise color mixing light source) guarantee maximum coincidence as far as possible.
Preferably, the photic conversion film of the quantum dot is prepared in the color blocking layer by inkjet printing mode.Using spray
Black printing type can effectively improve the yields of OLED display panel, and reduce production cost simultaneously.
Preferably, the OLED array is top emission type structure, and the OLED array, the quantum dot are photic
Conversion film and the colored filter are set gradually along light direction.The OLED array is by thin film transistor (TFT)
(TFT) come what is controlled, TFT and metallic circuit are disposed on the substrate, and go out light using top emitting form, light is from OLED array base
It is emitted above plate, the TFT and metallic circuit on substrate would not influence the lighting area of light emitting source.With bottom emitting type panel phase
Than the operating voltage of the OLED of top emission type panel is lower under same brightness, can obtain longer service life.
Referring to FIG. 1, the film layer structure schematic diagram of the first embodiment of quantum dot OLED display panel of the present invention.In this reality
It applies in example, the quantum dot OLED display panel includes the colored filter 11 set gradually along separate light direction, an amount
Son puts photic conversion film 12 and an OLED array 13.
The colored filter 11 includes being set to the glass along the glass substrate 110 set gradually far from light direction
One color blocking layer of the separate light direction side of glass substrate 110, the color blocking layer include dividing the color blocking for having multiple color blocking units
Array, the color blocking unit include that a green sub- color blocking 112 of red sub- color blocking 111, one and a white space 113 (are used in figure
Dashed box signal).The sub- color blocking 111 of red and the sub- color blocking 112 of the green are laterally adjacent.Preferably, the sub- color blocking of red
111, the sub- color blocking 112 of green and white space 113 are spaced apart by a black matrix" (BM) 114.Preferably, the colored filter
Mating plate 11 further includes covering the sub- color blocking 111 of the red, the sub- color blocking 112 of green, white space 113 and black matrix" 114
One barrier layer 115, the barrier layer 115 are used to be isolated the colored filter 11 and the photic conversion film 12 of the quantum dot, and
When can make the quanta point material printing of the photic conversion film 12 of the quantum dot, the spreadability of printed material is more preferable.In other realities
It applies in example, the sub- color blocking of blue can be set in the white space 113.
The photic conversion film 12 of quantum dot prepares red quantum dot material (QD- at the sub- color blocking 111 of the correspondence red
R) 121, green quanta point material (QD-G) 122 is prepared at the sub- color blocking 112 of the correspondence green, in the correspondence white space
It leaves a blank at 113.The red quantum dot material 121 is prepared on the barrier layer 115 described in correspondence by inkjet printing mode
At red sub- color blocking 111, it is right on the barrier layer 115 that the green quanta point material 122 is prepared by inkjet printing mode
It answers at the sub- color blocking 112 of the green.It can effectively improve the yields of OLED display panel using inkjet printing mode, and simultaneously
Reduce production cost.The spectrum of the quanta point material can be adjusted with quantum dot size, and red/green quanta point material has can
Can be it is same, the quanta point material includes one kind of CdS, CdSe, ZnCdS, ZnCdSe, InP etc. or perovskite material
Or it is a variety of, the present invention is without limitation.
In other embodiments, the photic conversion film 12 of the quantum dot can also be made at the correspondence white space 113
Standby blue quanta point material (QD-B) or setting light diffusing particles.Light diffusing particles may be combined in the photic conversion of the quantum dot
In the film layer of film 12, it can also be placed in the resin system outside the photic conversion film 12 of the quantum dot, to improve light diffusion function.
The material of light diffusing particles is organic material or inorganic material, and the scale of light diffusing particles is nanoscale or micron order, light scattering
Particle isotropism and anisotropy.
Preferably, the photic conversion film 12 of the quantum dot includes an organic protection layer 124, and the organic protection layer 124 is used
In the film-forming region for limiting the red quantum dot material 121 and the green quanta point material 122.Specifically, described have
Machine protective layer 124 can be using transparent or nontransparent resin material.The organic protection layer is prepared using nontransparent resin material
When 124, the red quantum dot material 121 is limited to corresponding sub- 111 region of color blocking of red, by the green quantum dot
Material 122 is limited to corresponding sub- 112 region of color blocking of green, leaves a blank at the correspondence white space 113, other regions are
It is nontransparent to play the role of photoresist.
The OLED light emitting source that the OLED array 13 emits include a blue light source (being illustrated in figure with letter b) and
The red blue color mixing light source (being illustrated in figure with letter r, B) of red-light source+blue light source composition one, the red blue color mixing light source setting
At the sub- color blocking 111 of the red of the correspondence colored filter 11.Blue light source in the red blue color mixing light source is used for
The red quantum dot material 121 of the photic conversion film 12 of the quantum dot is excited to issue feux rouges, thoroughly by the sub- color blocking 111 of the red
Out；Red-light source in the red blue color mixing light source can be directed through the sub- color blocking 111 of the red, to improve display surface
The brightness of plate.
The OLED array 13 is top emission type structure, including what is set gradually along light direction: one pixel of band is fixed
The tft array substrate 131 of adopted layer 1311, a top emission OLED device 132 and a thin-film package (TFE) 133.Wherein, described
The thin film transistor (TFT) (TFT) of tft array substrate 131 can be oxide thin film transistor (IGZO TFT) or low temperature polycrystalline silicon
Thin film transistor (TFT) (LTPS TFT)；The pixel defining layer 1311 is set for defining and limiting top emission OLED device structure 132
Seated position, and then define and limit size and the position of each sub-pixel.The top emission OLED device structure 132 includes one anti-
Shining sun pole, an OLED functional layer, an OLED luminescent layer, a transparent cathode and a smooth removing layer；Wherein, the OLED functional layer packet
Include a hole injection layer, a hole transmission layer, an electron transfer layer, an electron injecting layer it is one or more.The top emitting
OLED device structure 132 may include one and fold or fold more the OLED functional layer and the OLED luminescent layer.The reflection anode
It can be made of ITO/Ag/ITO material, the transparent cathode can be made of tin indium oxide (ITO), Mg/Ag material etc.,
To improve the translucency of device.The thin-film package 133 stacks to be formed with organic material using inorganic, and at least one layer of production is inorganic
Encapsulating material.
Referring to FIG. 2, the corresponding CF frequency spectrum of red sub-pixel in quantum dot OLED display panel of the present invention, QDPL spectrum and
The schematic diagram of the spectrum of color mixing light source.As seen from Figure 2, the corresponding CF frequency spectrum of red sub-pixel (frequency spectrum of red sub- color blocking)
21, it is substantially heavy to compose (red quantum dot material spectrum) 22 and OLED light emitting source spectrum (spectrum of red indigo plant color mixing light source) 23 by QDPL
It closes, to improve translucency, improves display panel brightness.
Referring to FIG. 3, the film layer structure schematic diagram of the second embodiment of quantum dot OLED display panel of the present invention.With Fig. 1
Illustrated embodiment the difference is that, in the present embodiment, the OLED light emitting source of OLED array 13b transmitting includes
One blue light source (being illustrated in figure with letter b) and the turquoise color mixing light source of green light+blue light one (with alphabetical G, B signal in figure),
The turquoise color mixing light source is arranged at the sub- color blocking 112 of the green of the correspondence colored filter 11.The turquoise colour mixture
Blue light source in light source is used to that the green quanta point material 122 of the photic conversion film 12 of the quantum dot to be excited to issue green light, leads to
The sub- color blocking 111 of the green is crossed to appear；Green-light source in the turquoise color mixing light source can be directed through the sub- color of green
Resistance 112, to improve the brightness of display panel.Specifically, the turquoise color mixing light source is sent out by the lamination top of green light and blue light
Configuration is penetrated to be formed.
Preferably, the corresponding CF frequency spectrum of green sub-pixels (frequency spectrum of the sub- color blocking of green), QDPL compose (green quanta point material
Spectrum) and OLED light emitting source spectrum (spectrum of turquoise color mixing light source) guarantee maximum coincidence as far as possible, to improve translucency,
Improve display panel brightness.
Referring to FIG. 4, the film layer structure schematic diagram of the 3rd embodiment of quantum dot OLED display panel of the present invention.With Fig. 1
Illustrated embodiment the difference is that, in the present embodiment, the OLED light emitting source of OLED array 13c transmitting includes
The red blue color mixing light source that one blue light source (being illustrated in figure with letter b), red-light source+blue light source form is (with letter in figure
R, B illustrates) and one turquoise color mixing light source of green light+blue light source composition (with alphabetical G, B signal in figure).The red blue colour mixture
Light source is arranged at the sub- color blocking 111 of the red of the correspondence colored filter 11, and the turquoise color mixing light source is arranged right
It answers at the sub- color blocking 112 of the green of the colored filter 11.Blue light source in the red blue color mixing light source is for exciting
The red quantum dot material 121 of the photic conversion film 12 of quantum dot issues feux rouges, is appeared by the sub- color blocking 111 of the red；
Red-light source in the red blue color mixing light source can be directed through the sub- color blocking 111 of the red；In the turquoise color mixing light source
Blue light source be used for excite the quantum dot it is photic conversion film 12 green quanta point material 122 issue green light, by described
The sub- color blocking 111 of green appears；Green-light source in the turquoise color mixing light source can be directed through the sub- color blocking 112 of the green,
To improve the brightness of display panel.Specifically, lamination top emitting type of the red blue color mixing light source by feux rouges and blue light
Structure is formed, and the turquoise color mixing light source is formed by the lamination top emitting configuration of green light and blue light.
It is also differ in that with embodiment illustrated in fig. 1, in the present embodiment, the colored filter 11c's is each
Color blocking unit includes the sub- color blocking 112 of sub- 111, one green of color blocking of a red and a sub- color blocking 113c of blue.The sub- color of red
Resistance 111, the sub- color blocking 112 of green and the sub- color blocking 113c of blue are spaced apart by a black matrix" 114.One barrier layer 115c covering
The sub- color blocking 111 of the red, the sub- color blocking 112 of green, the sub- color blocking 113c of blue and the black matrix" 114.Correspondingly, described
The photic conversion film 12c of quantum dot prepares blue quanta point material (QD-B) 123c at the sub- color blocking 113c of the correspondence blue.In
In other embodiments, the photic conversion film 12c of quantum dot can also leave a blank or set at the sub- color blocking 113c of the correspondence blue
Set light diffusing particles.
Preferably, the corresponding CF frequency spectrum of red sub-pixel (frequency spectrum of red sub- color blocking), QDPL compose (red quantum dot material
Spectrum) and the OLED light emitting source spectrum spectrum of color mixing light source (red indigo plant) guarantee maximum coincidence as far as possible；Green sub-pixels are corresponding
The CF frequency spectrum frequency spectrum of color blocking (green sub-), QDPL spectrum (green quanta point material spectrum) and OLED light emitting source spectrum it is (turquoise
The spectrum of color mixing light source) guarantee maximum coincidence as far as possible；The corresponding CF frequency spectrum of blue (frequency spectrum of the sub- color blocking of blue), QDPL spectrum
(blue quantum dot material spectrum) and OLED light emitting source spectrum (blue spectrum) guarantee maximum coincidence as far as possible, to improve saturating
Photosensitiveness improves display panel brightness.
Fig. 5 A is please referred to, signal shown in quantum dot OLED display panel sub-pixel arrangement first embodiment of the present invention
Figure, right side be existing sub-pixel arrangement as a comparison.In the present embodiment, each color blocking list of the colored filter 51
Member 510 includes the sub- color blocking 512 of sub- 511, one green of color blocking of a red and a sub- color blocking 513 of blue；The sub- color blocking 511 of red
It is longitudinally adjacent with the sub- color blocking 512 of the green, the sub- color blocking 513 of blue and the sub- color blocking 511 of the red and the green
Sub- color blocking 512 is laterally adjacent；That is, red sub- color blocking is made in a manner of full line with the sub- color blocking of green in color blocking layer.The OLED
Red blue color mixing light source 531, the corresponding sub- color blocking 512 of green is arranged in array substrate 53 at the sub- color blocking 511 of the correspondence red
Place is arranged turquoise color mixing light source 532, corresponds to the turquoise radiant 533 of setting at the sub- color blocking 513 of blue；I.e. red blue color mixing light source
It is made in a manner of corresponding full line with turquoise color mixing light source.Compared to it is existing with R/G/B sub-pixel group at pixel unit
The sub-pixel arrangement of 510 ' array formats arrangement, quantum dot OLED display panel sub-pixel arrangement of the present invention can mention
Panel resolution is risen, and in panel is manufactured, without precision metallic light shield, reduces panel production difficulty, simultaneously
Reduce production cost.
Fig. 5 B is please referred to, signal shown in quantum dot OLED display panel sub-pixel arrangement second embodiment of the present invention
Figure.With Fig. 5 A illustrated embodiment the difference is that, in the present embodiment, each color blocking list of the colored filter 51a
In first 510a, the sub- color blocking 511a of red and the sub- color blocking 512a of the green are longitudinally adjacent, the sub- color blocking 513a of blue with
The sub- color blocking 511a of red and the sub- color blocking 512a of the green are laterally adjacent；That is, red sub- color blocking and green in color blocking layer
Color blocking is made in a manner of permutation.Correspondingly, in the OLED array 53a, the red indigo plant color mixing light source 531a with it is described
Turquoise color mixing light source 532a is made in a manner of corresponding permutation.
The above is only a preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
Member, various improvements and modifications may be made without departing from the principle of the present invention, these improvements and modifications also should be regarded as
Protection scope of the present invention.
Claims (10)
1. a kind of quantum dot OLED display panel characterized by comprising
One colored filter, the colored filter include a color blocking layer, and the color blocking layer includes dividing to have multiple color blocking units
A color blocking array, each color blocking unit includes at least a red sub- color blocking and a sub- color blocking of green, the red son
Color blocking and the sub- color blocking of green are laterally adjacent or longitudinally adjacent；
The photic conversion film of one quantum dot, the photic conversion film of quantum dot prepare red quantum at the correspondence sub- color blocking of red
Point material prepares green quanta point material at the correspondence sub- color blocking of green；And
One OLED array, the OLED light emitting source of OLED array transmitting include a blue light source and at least one
Color mixing light source, the color mixing light source are arranged at the sub- color blocking of the correspondence red or the sub- color blocking of green, the color mixing light source
It is made of the blue light source and a light emitting source corresponding with the sub- color blocking of the red or the sub- color blocking color of the green.
2. quantum dot OLED display panel as described in claim 1, which is characterized in that in the quantum dot OLED display panel
On, each sub- color blocking and corresponding light emitting source common definition go out a sub-pixel, the corresponding colored filter of same sub-pixel
Frequency spectrum, quantum dot photoluminescence spectra and OLED light emitting source spectrum essentially coincide.
3. quantum dot OLED display panel as described in claim 1, which is characterized in that in the quantum dot OLED display panel
Resolution is obtained using SPR algorithm when driving.
4. quantum dot OLED display panel as described in claim 1, which is characterized in that
The color mixing light source is made of a red-light source and the blue light source, and is arranged at the correspondence sub- color blocking of red；
Or
The color mixing light source is made of a green-light source and the blue light source, and is arranged at the sub- color blocking of green.
5. quantum dot OLED display panel as described in claim 1, which is characterized in that the color mixing light source includes:
The red blue color mixing light source being made of a red-light source and the blue light source, the red blue color mixing light source are arranged in correspondence
At the sub- color blocking of red；And
The turquoise color mixing light source being made of a green-light source and the blue light source, the turquoise color mixing light source are arranged in correspondence
At the sub- color blocking of green.
6. quantum dot OLED display panel as described in claim 1, which is characterized in that the OLED array is top emitting
Type structure, the photic conversion film of the OLED array, the quantum dot and the colored filter along light direction successively
Setting.
7. quantum dot OLED display panel as described in claim 1, which is characterized in that the photic conversion film of quantum dot includes
One organic protection layer, the organic protection layer are used to limit the red quantum dot material and the green quanta point material
Film-forming region.
8. quantum dot OLED display panel as described in claim 1, which is characterized in that the colored filter includes covering institute
State a barrier layer of color blocking layer；
The red quantum dot material is prepared by inkjet printing mode to be corresponded on the barrier layer at the sub- color blocking of red,
The green quanta point material is prepared by inkjet printing mode to be corresponded on the barrier layer at the sub- color blocking of green.
9. quantum dot OLED display panel as described in claim 1, which is characterized in that
The color blocking unit further includes a sub- color blocking of blue, when the sub- color blocking of red and the sub- color blocking of green are laterally adjacent
When, the sub- color blocking of blue and the sub- color blocking of the red and the sub- color blocking of green are longitudinally adjacent, when the sub- color blocking of red
When longitudinally adjacent with the sub- color blocking of green, the sub- color blocking of blue and the sub- color blocking of the red and the sub- color blocking of the green are horizontal
To adjacent；
The photic conversion film of quantum dot prepares blue quanta point material at the correspondence sub- color blocking of blue or setting light scatters
Particle is left a blank；And
The blue light source is provided at the sub- color blocking of blue.
10. quantum dot OLED display panel as described in claim 1, which is characterized in that
The color blocking unit further includes a white space, when the sub- color blocking of red and the sub- color blocking of green are laterally adjacent,
The white space and the sub- color blocking of the red and the sub- color blocking of green are longitudinally adjacent, when the sub- color blocking of red with it is described
When the sub- color blocking of green is longitudinally adjacent, the white space and the sub- color blocking of the red and the sub- color blocking of green are laterally adjacent；
The photic conversion film of quantum dot prepares blue quanta point material at the correspondence white space or setting light scatters grain
Son is left a blank；And
The blue light source is provided at the white space.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910816776.3A CN110518135A (en) | 2019-08-30 | 2019-08-30 | Quantum dot OLED display panel |
| PCT/CN2019/115268 WO2021035943A1 (en) | 2019-08-30 | 2019-11-04 | Quantum dot oled display panel |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910816776.3A CN110518135A (en) | 2019-08-30 | 2019-08-30 | Quantum dot OLED display panel |
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| CN110518135A true CN110518135A (en) | 2019-11-29 |
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| CN201910816776.3A Pending CN110518135A (en) | 2019-08-30 | 2019-08-30 | Quantum dot OLED display panel |
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| Country | Link |
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| CN (1) | CN110518135A (en) |
| WO (1) | WO2021035943A1 (en) |
Cited By (5)
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| CN110611035A (en) * | 2019-08-30 | 2019-12-24 | 深圳市华星光电半导体显示技术有限公司 | Quantum dot OLED display panel |
| CN111028704A (en) * | 2019-12-10 | 2020-04-17 | 深圳市华星光电半导体显示技术有限公司 | Display panel and preparation method thereof |
| US10923672B1 (en) | 2019-11-06 | 2021-02-16 | Shenzhen China Star Optoelectronics Semiconductor Display Technology Co., Ltd. | Quantum dot organic light emitting diode display panel |
| WO2021092988A1 (en) * | 2019-11-11 | 2021-05-20 | 深圳市华星光电半导体显示技术有限公司 | Display panel and display terminal |
| CN113113454A (en) * | 2021-03-26 | 2021-07-13 | 武汉华星光电半导体显示技术有限公司 | Display panel and display device |
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| Publication number | Publication date |
|---|---|
| WO2021035943A1 (en) | 2021-03-04 |
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